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DataBeginner

SQL and PostgreSQL Mastery

Query, model, and optimize relational data with SQL and PostgreSQL through realistic business datasets.

4.9

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(2,734 ratings)
0 learners
English

Created by Nidool Demo Instructor · Updated Jul 2026

SQL and PostgreSQL MasteryPremium course

₦22,000

₦290

Secure, backend-verified checkout

Course content

3 modules

Flexible schedule

4h 15m

Experience level

Beginner

Credential

Shareable certificate

AboutOutcomesCurriculumInstructorReviewsFAQs

About this course

Build practical, career-ready expertise

Query, model, and optimize relational data with SQL and PostgreSQL through realistic business datasets. Work through focused lessons, practical activities, and guided resources at a pace that fits your schedule.

Aspiring data analysts
Backend developers
Business professionals working with data

Course details

Assessments

9 learning activities

Language

English · 3 subtitle options

Learning format

Self-paced online course

Outcomes

What you'll learn

Write accurate analytical SQL
Design normalized relational schemas
Use transactions and constraints
Diagnose slow queries with indexes and plans

Skills you'll gain

SQLPostgreSQLData modeling

Course content

There are 3 modules in this course

Move through 12 lessons and activities designed to turn new ideas into practical knowledge.

SELECT, filtering, and sorting: Guided lesson

Video · Preview

28m

Aggregations and grouping: Professional field guide

Article

12m

Query fundamentals knowledge check

Quiz

10m

Meet your instructor

NI

Nidool Demo Instructor

SQL practitioner and Academy instructor

4.9 instructor rating 0 learners

An experienced practitioner focused on helping learners apply sql through clear methods, realistic projects, and professional feedback.

Learner feedback

What learners are saying

4.9

2,734 ratings

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Query optimization
Module quizzes
Applied projects
Final test
Quizzes
Assignments

Before you begin

  • No database experience required
  • PostgreSQL or a compatible SQL environment

Joins and subqueries: Applied practice lab

Assignment

35m

Earn a course certificate

Add this credential to your profile and share your achievement.

Instructor

NI

Nidool Demo Instructor

SQL practitioner and Academy instructor

4.9 instructor rating 0 learners Independent instructor
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1,396 ratings
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12 lectures
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